AllVoices, a fast-growing citizen journalism platform, is announcing significant expansion today. The startup is launching global news desks in 30 different cities around the world, where both professional and citizen journalists will provide regular in-country reports from the ground. With the news desks, citizen reporters will be able to receive assignments from professional journalists. Cities with news desks include Baghdad, Beijing, Islamabad, London, Nairobi, and Shanghai. AllVoices allows anyone to contribute blog posts, images, videos and other observations, on local and global news. The site's proprietary technology (AllVoices has filed for three patents) will tag, rank and sort news based on a global, regional, country and city pages and will determine what is breaking news and popular (in terms of phases of a news cycle).